Topic Last Modified: 2010-01-26

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.

To learn more about this alert, in Operations Manager, do one or more of the following:


Product Name


Product Version

14.0 (Exchange 2010)

Event ID


Event Source

MSExchange OWA

Rule Path

Microsoft Exchange Server/Exchange 2010/Client Access/Outlook Web Access

Rule Name

WebReady Document Viewing isn't registered. To correct this problem, reinstall Outlook Web App.


This Error indicates that the WebReady Document Viewing service did not open an attachment as a Web page. WebReady Document Viewing lets users access file attachments in Microsoft Office Outlook Web App. Users can access common file types such as Microsoft Word documents even if the application is not installed. The event may occur if one or more of the following conditions are true:

  • The COM component of the WebReady Document Viewing service is not registered.

  • The following registry subkey is missing: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F7CC98B4-F6F5-489D-98EB-000689C721DE}.

User Action

  • To resolve this error, remove and then re-install the Client Access server role. For more information about how to modify server roles, see Modify or Remove Exchange 2010.

  • Resolve your issue by using self-support options, assisted support options, and other resources. You can access these resources from the Exchange Server Solutions Center. From this page, click Self-Support Options in the navigation pane to use self-help options. Self-help options include searching the Microsoft Knowledge Base, posting a question at the Exchange Server forums, and others. Alternatively, in the navigation pane, you can click Assisted Support Options to contact a Microsoft support professional. Because your organization may have a specific procedure for directly contacting Microsoft Technical Support, be sure to review your organization's guidelines first.

For More Information

If you are not already doing so, consider running the Exchange tools created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.